Charging takes too long or the Walkman does not fully charge.

IMPORTANT: This article applies only to specific products and/or operating systems. Check the Applicable Products and Categories section of this article before starting these steps.

Check the following:

• Use the USB Type-C cable supplied with the Walkman player. If you use another cable, charging may take a long time, or may not fully charge the player.
  Note: The average charging time is approximately 4.5 to 5.5 hours, depending on the model. For more specific charging specifications, refer to the Help Guide for your model.
• Charge the Walkman battery at ambient temperature between 5 ℃ 5 °C and 35 °C (41 ºF to 95 ºF).
  Note: When the inner temperature in the player is high, the player will not fully charge. This is a specification to save the battery life. We recommend charging the player at a moderate temperature to prevent temperature rise.
• When the ambient temperature exceeds the recommended range, (a temperature abnormality icon) appears on the status bar and charging is forcibly terminated.

• When the Battery Care function is turned on, the maximum charging capacity is limited, and the battery will not fully charge. This is not a malfunction.